Simple Calculator

A 2-operand standard calculator built with C for ATmega16.

Key Features • Flowchart • How To Use • Notes • Prerequisites • License

Key Features

• Basic Arithmetic Operations
  • Addition (+), Subtraction (-), Multiplication (×), and Division (÷).
  • Percentage (%)
  • Square Root (√)
  • Power (^)
• Chained Calculations
  • No need for pressing "=" to do another calculation with the result of last one.
• Floating Point Support
  • Handles both integer and floating-point numbers for more precise calculations.
  • Supports up to 3 decimals.
• Automatic Refill
  • If not taken an operand, suggests operands from previous calculations instead.
• Proteus Simulation

Flowchart

How To Use

1. Clone the Repository: To clone and run this application, you'll need Git installed on your computer. From your command line:

# Clone this repository
$ git clone https://github.com/PeymanRM/Simple-Calculator.git

2. Open the Proteus Simulation: Navigate to the circuit folder and open the provided Proteus simulation file (calculator.pdsprj).
3. Chose program file: Double-click on U1 and choose the program file: ./Code/Debug/Exe/ATmega16_Calculator.hex
4. Start the simulation

Notes

Note 1: Power operation (^) is actually (+/-) button.

Note 2: Memory operations on keypad are not implemented.

Prerequisites

• CodeVisionAVR 3.14
• Proteus 8

License

MIT

---

LinkedIn @PeymanRM  ·  GitHub @PeymanRM  ·  X @Peyman_RM